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Examples

In this often surreal town, the absurdist gibberish that comes out of LAWA, the city department that owns and operates LAX, about the infeasibility of bringing Metro to the terminals takes first prize in the fiction department.

Establishment pols say political infeasibility makes single-payer healthcare a non-starter, but the recent political tragicomedy unfolding in VFWs and gymnasiums across America have only left the Left dispirited and brought the Right, smelling blood, to the warpath.

I tend to think more according the (b), though if it turns out that the computing resources required to circumvent this infeasibility are greater then what is available in the universe (an infinitely large computer) then this problem segues into (a) as well.